package collection;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

//集合的排序:字符串型
public class SortString {
    public static void main(String[] args) {
        List<String> list =new ArrayList<>();
        list.add("jack");
        list.add("rose");
        list.add("black");
        list.add("James");
        list.add("Kobe");
        System.out.println(list);//按输入排序[jack, rose, black, James, Kobe]

        //对英文字符串排序时,会按首字母ASCII码来排序
        //若首字母相同,则比较第二个字母的ASCII码,以此类推
        Collections.sort(list);
        System.out.println(list);//按ASCII码排序[James, Kobe, black, jack, rose]

        List<String> list1=new ArrayList<>();
        list1.add("王克晶");
        list1.add("詹姆斯lsdjfj");
        list1.add("传奇");
        list1.add("ueworiuwoer");
        Collections.sort(list1);
        System.out.println(list1);

        Collections.sort(list1, new Comparator<String>() {
            @Override
            public int compare(String o1, String o2) {
                return o1.length()-o2.length();//大于0,升序.小于0,降序
            }
        });
        System.out.println(list1);

    }
}
